A&B

A&B may refer to:


 * Above & Beyond (band)
 * Alexander & Baldwin, an American company
 * Alston & Bird, an international law firm based in Atlanta, Georgia.
 * Antigua and Barbuda, a country
 * Arbogast & Bastian (A&B Meats), a defunct meat-packing company based in Allentown, Pennsylvania, USA
 * Assault and battery (disambiguation)
 * Roman Catholic Diocese of Arundel and Brighton, England
 * A&B, a bit signaling procedure used in SF (D4) framed T1 transmission facilities